Prove the following
`int_(0)^(pi/4)2tan^(3)xdx=1-log2`

Prove the following int_(0)^(pi/2)sin^(3)xdx=2/3

int_0^(pi/4) tan^(2)xdx

Prove the following int_(0)^(1)sin^(-1)xdx=pi/2-1

Prove the following int_(-1)^(1)x^(17)cos^(4)xdx=0

int_0^(pi/8) tan^(2) (2x) dx =

Prove that int_(0)^(a) f(x) dx = int_(0)^(a) f(a - x)dx and hence evaluate the following: (b) int_(0)^(pi/2) cos^(2) xdx .

Prove the following int_(1)^(3)(dx)/(x^(2)(x+1))=2/3+log2/3

Prove that int_(0)^(a) f(x) dx = int_(0)^(a) f(a - x)dx and hence evaluate the following: (f) int_(0)^(pi)(xdx)/(a^(2)cos^(2)x + b^(2)sin^(2)x)

int_0^(pi//2) log(tan x)dx =

int_(0)^(pi//2) log sin x dx =